And walter brunn



F. E. BERRY,

THACOR.

APPLmATsuN .mm H2B. 25, 919.

Patented Nov. 23, 1920.

2 SHEETS-SHEET L 0MM o FIGURE, I?.

oonnoovnboo.

Fsc-:MRL i urb/NTOR HIS ATTORNr-.Y

F. E. BERRY.

TRACTOR.

Arvucnflou msn ras. 2s. 191s.

Patend Nov. 23, 1920.

' 2 SHEETS-SHEET 2.

" fleuris 4- mlm Fliili Iiid FleuBE 6 FFF-UBB 5 iii frm-ups 7 INJENTOB Ml "g1-t." M a H15 ATTORNEY UNITED STATES PATENT OFFICE.

FRANCIS E. BERRY, OE? SAN JDSE. CALIFORNIA. ASSIGNOR OF ONE-HALF T0 ROBERT BRUNN, 0F SAN FRANCISCO. CALIFORNIA. AND WALTER BRUNN. 0F SAN JOSE.

CALIFORNIA.

TRACTOR.' f

Patented Not'. 23, 1920.

Application filed February 25, 1919. Serial No. 379,137.1

To all' wlw/n if 'Inf/ 1] coffee/w:

lie it known that l'. Fluxus E. lilium. a ritizen of the l-Tnited States. and resident of Hau (lose. in the rounty ol Santa ('lara and State ol alitornia. have invented Certainnew and useful imprm'einents in .lractors. of which the ii'ollowinglr is a specitication.

My invention relates to tractors ol' the type Set forth in a general way in my oopending application Serial No. 249.-'ll. filed August l2, ltl-l, power transmitting mechanisn'i. in which independently controlled drive wheels are mounted upon a suitably supported tractor frame.

A tractor for use in orchard. garden and general farm work should have several prontnmteil'eharaeteristiesa the absence ofany one of which either reduces its I 'aetieai util` ity or interferes materially in its salahility. For field work is should be suliieiently heavy to secure good traction on a hase sui'lieiently wide and iong to operate positively on eur 'iai-es badly broken and rough with rats. elod. ridges. ete. For orehard work should he added the requirements of veornpaetness and flexibility in order to pern'iit the working! ofthe ground under the trees 4ind lose to the tree trunks and to permit the proper manipulation oi the marhi'ne at the-end ot' eaeli row of trees. For garden work should he added the requirement ol' ailjustaliility so that the machine may he adapted for use between rows: of growing things.

It is the obtiei't of my invention to provide a tractor Vthat will not only satistaetorily meet all oi the requirements hereinliei'ore set forth hut whit-h.` also. aan he operated for long periods without und le strain upon the driver: that embodies a. minimum numher of parts in its construction and is therefore easy to operate. sissy Lo repair. and which can he manui'm'tured :it low vost. and operated at a minimum expense.

Vlfith' these and other objects in View my invention eonsists in the novel, and useful Combination and relative arrangement of parts, members and features as hereinafter described. shown in the drawings and finally pointed out in the claims.

1n the drawings Figure l is a side elevation of my improved trartor.

Fig. 2 is a plan view ot' the tractor shown in Fig. l.

Fig. Ii is a detail perspective view ol a portion of the transmission meehanism.

Fig. l is a diagramnultieal illustration of my improved traf-tor in wlieh the frame is partly supported hy an ea i'th tillintr implement.

Fig. .3 is a side elevatiin of the structure shown in l"i 4.

Fig. 1 is a diagrannnatieal illustration of my improved trai-tor adapted for use as a traek layingr traetor.

Fig.

i isadiagrammatiral illustration oi a tractor emliodyilltlr my invention and pro` vided with a pair of tiller wheels.

Similar ehararters of referente indicate similar parts throughout the several views.

Referring now more particularly to the drawings. l indicates the tractor frame. 2 the engine mounted thereon and I- the fuel supply. At l is shown a tiller wheel freely 7 revolulile about a vertiral axis hy meansl of its .vertieal shaft 5 being positioned in hearingsl. and hearings (i being seeured in transversely positioned slot 7 in frame 1. liearings are normally locked in position in the renterot' slot 7 hy means of any suitable meehanism as bolts 8. hut may he shifted and locked in position to the right or left. ofthe renter line as indicated in dotted lilies at 9 and 10 respectively.

At l2 is shown a shaft operated by motor Q and r-arrying` a pair of fly-wheels 13 halaneed one on eaeh side of the median line of the traetor f1'anie,`the shaft 12 being operatedby engine 2 in the usual manner and with Athe usual connerting mechanisms.

At 14 is shown a shaft mounted transversely on frame vl and carrying drive wheels l5, each drive Wheel l5 being pr0- vided with an internal gear 16.` The driving, mechanism Connecting each drive wheel 15 with its respective fly-wheel 13 is as follows. A shaft 17 is mounted to rotate on frame l as shown and carries a pinion 18 which is permanently in mesh with internal gear 16,

and a spur gear 19. Spur gear 19 meshes with a pinion 20, which, together with pulley 21 to which it is secured, is revolubly mounted on jack-shaft 22, and pulley `21 being connected to fly-wheel 13 by belt 23. Jack-shaft 22 is mounted in a cradle 24 formed on the upper end of bell-crank` 25, said bell-crank 25 bein pivotally mounted on box 2G in which siaft 17 rotates as shown. The lower end of bell-crank-25 extends rearwardly of the machine to a point adjacent to shaft 14 where it is connected to a projection 27 on lever 28 by link 29.

The result of this construction is, that by throwing lever 28 forwardly bell-crank 25 is operated to throw pulley 21 into operative engagement with belt 23. Since the gear connections hereinbefore described are 1n permanent engagement, one with the other, the operation of the pulleyA 21 in the direction indicated b drive the drive whee forward. 4This pivoted arrangement of meshing gears also has the el'lect of automatically maintaining pulley 21 in operative relation with belt 23 because )inion 20 is operatingf against gear 19 and iorcing the same in the opposite direction. lf lever 28 is thrown backward to a point as indicated in dotted lines at 3() then the bell-crank mechanism operates to throw pulley 21 into frictional engagement with fly-wheel 13 and out of engagement with the b elt 23. This connection operates to reverse the direction of rotation of pulley 21 and the revolnble parts connected thereto, the operation of pinion 20 against gear 19 serving to maintain said pulley 21 in positive frictional engagement .with iiywheel 13. By throwing level' 28 into a position as indicated in dotted lines at 31 the bell-crank mechanism is operated to position ulley 21 in a neutral inoperative osition etween belt 23 and fly-wheel 13. T e lever 28 may be held in the last mentioned position in any suitable manner as by a catch 32 on lever 28, and a notch 33 in a. bar 34 positioned on frame 1. A

It may now be clearly seen that by the above described arrangement the drive wheels 15 may be driven forwardly or baclg wardly in unison or separately to driv the tractor forwardly or backwardly or to turn the same in either direction.

.tractor may be adjusted to operate astride a ridge without breaking the saine down, al

' turned in any t irection.

the arrow serves to y In operating in Aa. garden between the;A

tie-ability and durability of the machine as well to increase the facility with which the machine ma be started and stopped or The combination of independent pairs of belt and friction drives is also of value in some cases of heavy side pull because they permit the full application of ower to the drive wheel upon the side sub]ected to the pull while the power may be applied to the other drive wheel in any desired amount to maintain the tractor on a straight line of tra-vel.

In the modification indicated in Figs. 4 and 5 the transmission mechanisms are ihdicated at il?) and are constructed and assembled as hcreinbefore described. Instead, however: of mounting the tiller Wheel as above described I have substituted-thereL for an earth tilling im lement as 36 which itself' supports one en of frame 1. In a case of this kind the forward movcmentof the tractor would be the reverse of that described and consequently the drivers seat should be positioned as at 37 and thetransmission mechanism operated in an suitable manner as by levers 38 connecte( to bellcranks 25 by rods 39.

ln Fig. (i it is shown that the frame may be mounted upon a pair of track laying mechanisms operated throuvh the me dium of drive wheels 15, in 'this case the tractor operates in substantially the same manner as described in connection with Figs. 1 and 2 but the caster is eliminated. The tracks are indicated at 40.

Fig. 7 illustrates a modification of my invention in which a pair of casters 41 are mounted on the forward end of the tractor. Such a construction may he desirable for large machines designedt for heavy work or to meet certain conditions in practical ap.- plication.

It is understood, of course, that while I have herein shown and described certain claim 1. A tract-.or including afname operatively mounted upon suitable supporting means-including` a pair of drive wheels and having a motor and a motor driven shaft operatively mounted thereon, and a reversing transmission mechanism operatively connecting said shaft with each of said drive wheels, each of said reversing transmission mechanisms including a belt drive for transmitting power vto operate said drive wheels in one t'lirection, a friction drive for transmitting' power to operate said drive wheels in the ,ipposite direction, and gear connections for automatically maintaining said belt drive or said friction drive in an operative position.

2. A tractor including; a frame operatively mounted upon a pair of suitable supporting,` and driving means and having a motor and a motor driven shaft operatively mounted thereon, a reversing transmission mechanism oi'ierativcly connectingv said shaft with each of said drivingr means. each of said reversing' transmission mechanisms including' a belt drive for transmitting power to operate lsaid driving means in one direction and a friction drive for transmitting power to operate said drivingr means in the opposite dircction. and grcar counections for autormdirall)v maintaining' said belt drive or said -friction drive in an operativeposition.

I, A' tractor including." a frame operativcli" mounted upon a pair of suitable supporting' and driving means and having' a motor and a motor driven shaft operatively mounted thereon. and a rcversiiner transmission mechanism operatively connectingI said shaft with cach ot' said drivin;r means, each of said revcrsingr transmission mechanisms including' 'a belt drive for transmitting power to oper :vic said drivingr mcans in one dirci-tion and a l'i'ictior li'ivc for tmusmitting` power to opcratc said drivin;r means in thc oppositil 'lil-cci ion. fear connection for automatiifally maintaining' said belt drive o1' said friction drive in an operative position` and means for maintaining' said transmission mocha uisni in an inoperative position.

4. tractor including a trarne. a castor and a pair of drive wheels supporti-ng the sanic. arnotor ano aniotor drivcnsliaft opcratnclvniountcd'on said frame. and a reF voi-sia; transmission mechanism .ipcrativelv connecting' said shaft with crrh of said drivc whccls. cach oi said reversing: transmission niccluinisins including! a bclt drivtA l'or transmitting' power to operate said drive whccl in one direction. a friction drive for transinittinrr powcl' to operatc said driviwhccl in thel opposite direction, and foar conncctions l'or automatically maintaining .sjiidbg-lt drivcor said friction drive in an opcrativc position,

'.1 tractor including' a l'ramc, a caster and a pair of drivc whccls supporting' thc sarnc, a motor and a motor drivcn shaft op crzdivclymounted on said frainc` and a rcversiliar transmission mechanism operatively connecting said shaft with each of saiddrivov.

whereby either belt drive or fl'ietioildli'ii'e may be thrown into operation or simultaneously rendered inoperation.

o. A tractor includingr a frame, a castel' and a pair of drive wheels supporting the saine. a motor and a motor lriven shaft operatively mounted on said irame,'a pair of jack-shafts. a permanent driving connection between cach of said jack-shafts and the adjacent drivc wheel, a belt driving connection bctwccn `said motor driven shaft and each of said jack-shafts, a frictional driving connection between each of said jack-shafts and said motor driven shaft', and independcntv moans for shifting each of said jackshat'ts without destroying' the driving connection between the same and the adjacent drive wheel to brim.l either the belt drive or thc friction drive into action o1' to render the saine inoperative, said permanent drivlim connections being,r adapted to automatically maintain said belt drive or said frie tion drive in an operative position.

T. tractor including' a frame a castel' and a'pair of internally geared drive wheels supportiingr the same, a motor and a motor driven shaft operatively mounted on sa-id traine, a pair of jaclnshafts. permanent Irear connections between each of said jack-shafts and thc internal gear of the adjacent drive whccl. a belt tb'ivingronnection between said motor driven shaft and each of Isaid jack-shafts, a frivtional driving' connection between said motor driven shaft and cach of said jack-shafts, and means whereby each of said jack-shafts may' bemoved to brinar cithcr the belt drive or the friction drive ,into action` or .into a neutral. position between the imc` said gear connections being' adapted to automatically maintain said bclt drive or said friction position. i H. A tractor .including a l'ramc, a caster and a paiiof internally geared drive wliccls supporting thc same, a motor and a motor driven shaft operatively inounlcd on Isaid frame, a pair of flywhccls mounted on` said shaft` a pair oi' shafts revolubly mounted transversely oi' said l'ralne and carrying pinions in permanent'engagement with said inlcr'nally geared drive wheels, a non cooperating as a unitary structure with each pinion. a jack-sha ft pivotally mounted npion nach transverse shaft adjacent to eailh of said last mentioned gears, a pinion iphuuted dr-ivc in an operativoto rotateon each of said jack-shafts and in permanent engagement with the last mentioned adjacent gear, a pulley revolubly mounted on each jack-shaft tu cooperate as u unitnrystructure with the'adjacent pinion, u belt connection between each of said pulleys and the adjacent; iiy wheel, and means f or throwing either of said pulleys into operative engagement with its respective belt for driving the revoluble parts con- 10 nected thereto in one direction, or into frictionel engagement with its respective fly wheel for driving said parts in an :opposite direction, or into a neutral position between the two.;

Executed this 17th day of February,Y 191.9

FRANCIS BERE Y 

